A bus had broken down at the nearby stop and I enjoyed watching the consequent comings and goings.
Finally I noticed the bus had Dysons written on the front. Aha, that explained the man with the clipboard who'd climbed out of the car and gone to talk to the driver of the bus.
Why Dysons on the front of the bus? Why not Dyson?
Maybe a plurality of Dysons ran the bus company.
Or perhaps the word was a possessive; the bus was Dyson's property. If so, why was there no apostrophe?
In 1966 the Geographical Names Board of Australia decided placenames and street or road names in text, maps and public signs would be written without an apostrophe.
About twenty years ago the final act of a retiring principal at a local school was to climb a ladder and insert the apostrophe in the school's name - Pender's Grove Primary School. It's gone now (the apostrophe, not the school).
Sadly, he was twenty years too late to fight that battle of names, because the school was named after a place.
However, I still wondered about the Dysons question.
The official Australian Style manual says on page 86:
A possessive apostrophe is not necessary in the names of institutions, professional and industry bodies and other groups.Perhaps the car had the clue after all; Dyson GROUP. Maybe they read their Style Guide and noted page 86.